A nurse is caring for a client who has dementia. Which of the following interventions should the nurse take to minimize the risk for injury to the client?

The correct answer is A: Use a bed exit alarm system. This intervention is crucial in minimizing the risk of injury for a client with dementia as it alerts the nurse when the client attempts to get out of bed, preventing falls. This approach promotes client safety by allowing timely intervention. Raising four side rails (B) may restrict the client's movement and cause agitation or attempts to climb over the rails, increasing the risk of injury. Applying a soft wrist restraint (C) is considered a restrictive measure and should be avoided unless absolutely necessary due to the risk of causing emotional distress and physical harm to the client. Dimming the lights (D) in the client's room may increase confusion and disorientation, leading to a higher risk of falls.